使用initWithImage：（UIImage *）图像将图像添加到UIBarButtonItem [英] add image to UIBarButtonItem using initWithImage:(UIImage *)image

问题描述

我想知道如何将图像设置为UIBarButtonItem，然后在创建UIBarButtonItem时使用InitWithImage将其添加到UIToolbar。

I would like to know how to set an image to a UIBarButtonItem which will then be added to a UIToolbar, by using InitWithImage when creating a UIBarButtonItem.

我是执行以下操作，但它会创建一个空白空白，其中图像应位于UIToolbar上

I am doing the following, but it creates a blank whitespace where the image should be on the UIToolbar

UIImage *image = [UIImage imageNamed:@"6.png"];

UIBarButtonItem *systemItem1 = [[UIBarButtonItem alloc] initWithImage:image style:UIBarButtonItemStylePlain target:self action:@selector(pp:)];

谢谢！

推荐答案

这是一个从Facebook徽标创建工具栏按钮的示例。
创建指向图像的指针（已添加到xCode的文件），创建自定义按钮，更改按钮大小以匹配图像，设置按钮图像，从按钮视图创建工具栏按钮。

Here's an example that creates a toolbar button from the Facebook logo. Create a pointer to an image (file already added to xCode), create a custom button, change the size of the button to match the image, set image of button, create toolbar button from button view.

UIImage *faceImage = [UIImage imageNamed:@"facebook.png"];
UIButton *face = [UIButton buttonWithType:UIButtonTypeCustom];
face.bounds = CGRectMake( 0, 0, faceImage.size.width, faceImage.size.height );
[face setImage:faceImage forState:UIControlStateNormal];
UIBarButtonItem *faceBtn = [[UIBarButtonItem alloc] initWithCustomView:face];

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